Mobzilla

Mobzilla, AKA Bōjira (based on Toho's Godzilla) is the strongest hostile mob in Minecraft, added in the 50.6 update. It only spawns in Ocean and Plains biomes and is not manually summoned, spawning in any level of light. Its arrival is always marked with a massive storm 10x more dangerous than typical ones. Also, for good measure, around 50 Iron Armor Zombies are accompanying him at all times, fending off any players and killing anything in sight. He stands at over 50 blocks high, towering over almost all other entities. Mobzilla is automatically hostile towards every single mob besides his zombies and other spawned minions. Upon spawning, he actively begins to roam towards the nearest player or their creations. There is virtually no hope to defeat Mobzilla and his Zombie Army until the player(s) reaches their maximum power. The best way to kill him is by fighting him with tamed Kaiju allies.

Mobzilla is the second most powerful Kaiju mob in the game. Other Kaiju include Rodan, Mothra, King Kong, Kiryu, Ghidorah, and Gigan. However, one can never be certain that there are no others scattered throughout the world...

He is undoubtedly the second final and hardest boss in Minecraft.

Godzilla,Mothra and King Ghidorah Giant Monsters All Out Attack main theme

Enemies

Space Mobzilla

An even more powerful variant that does not count as another mob is Space Mobzilla, who is even more deadly and harder to kill. It has all the same stats and attributes as normal Mobzilla, only multiplied by 5. Upon death, Space Mobzilla drops twice the loot as his counterpart.